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org.apache.derbyTesting.unitTests.services
Class MarkedLimitInputStream  

java.lang.Object
  java.io.InputStream
      java.io.FilterInputStream
          org.apache.derby.iapi.services.io.LimitInputStream
              org.apache.derbyTesting.unitTests.services.MarkedLimitInputStream

All Implemented Interfaces:

java.io.Closeable, org.apache.derby.iapi.services.io.Limit

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public class MarkedLimitInputStream

extends org.apache.derby.iapi.services.io.LimitInputStream

An input stream whose internal data is in blocks, the format of each block is (boolean isLastBlock, int blockLength, sequence of blockLength bytes) All blocks except for the last block must have isLastBlock set to false. The last block must have isLastBlock set to true. This class implements an input stream whose length is limited, yet the creator (writer) of the stream does not need to know the entire length before creating it.

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Field Summary
protected  int	blockLength
protected  boolean	isLastBlock

 

Fields inherited from class org.apache.derby.iapi.services.io.LimitInputStream

limitInPlace, remainingBytes

 

Fields inherited from class java.io.FilterInputStream

in

 

Constructor Summary

MarkedLimitInputStream(java.io.DataInputStream in)

 

Method Summary
int	read()           Calls the in.read() method
int	read(byte[] b, int off, int len)           Calls the in.read(byte[], int, int) method.
long	skip(long count)           Calls the in.skip(long) method
private  void	start()

 

Methods inherited from class org.apache.derby.iapi.services.io.LimitInputStream

available, clearLimit, setInput, setLimit

 

Methods inherited from class java.io.FilterInputStream

close, mark, markSupported, read, reset

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Field Detail

isLastBlock

protected boolean isLastBlock

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blockLength

protected int blockLength

Constructor Detail

MarkedLimitInputStream

public MarkedLimitInputStream(java.io.DataInputStream in)
                       throws java.io.IOException

Method Detail

start

private void start()
            throws java.io.IOException

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read

public int read()
         throws java.io.IOException

Description copied from class: java.io.FilterInputStream

Calls the in.read() method

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read

public int read(byte[] b,
                int off,
                int len)
         throws java.io.IOException

Description copied from class: java.io.FilterInputStream

Calls the in.read(byte[], int, int) method.

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skip

public long skip(long count)
          throws java.io.IOException

Description copied from class: java.io.FilterInputStream

Calls the in.skip(long) method

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